Hypersomnia (video game)


Hypersomnia is a Polish two-dimensional online shooter game created by Patryk Czachurski. The game is inspired by the Hotline Miami and Counter-Strike games. The game development team consists as of 2025 of 4 people, each person being responsible for programming, graphical effects, level designing and website management.
The game's source code is published on GNU AGPL 3.0 licence. It is available for Windows, macOS and Linux, and can be played in a web browser. The first tournaments related to this game were played at 39th edition of PolyLAN, and also on Poznańska Impreza Wolnego Oprogramowania in 2025.
Steam App: 2660970

Development

The game's development took ten years, and it was released on Steam on 28 December 2023. The first commits were registered on GitHub as early as 2013, with game becoming playable around 2017.
A rectangle packing library, called rectpack2D and created specifically for Hypersomnia, was used in the game Assassin's Creed Valhalla, by American drone manufacturer Skydio, and inside the Snapchat's Android mobile app. The ACM Transactions on Graphics journal has also published a paper referring to rectpack2D in 2019.
A 2018 patent, belonging to Unity referred to the assemblage buckets problem which was conceptualised by Czachurski a few years earlier on one of Stack-Exchange-owned forums. Although Hypersomnia's lead developer claimed that no game engine was used in the development process, he confirmed to the Kontrabanda technology news website that "a few" external programming libraries were used.

Reception

Both Liam Dawe of GamingOnLinux website and editorial team of lubiegrac.pl website praised the game in terms of its technical aspects. Additionally, it received a praise from official GitHub blog team, with them saying about Hypersomnia "giving a lot of fun" and the game "being technically innovative". Linux Magazine in its 275th issue has highlighted Hypersomnia in FOSSPicks category.
YearEvent nameNominated forResult
2023Game Development World ChampionshipBest Community DesignWon
2023Game Development World ChampionshipBest Multiplayer GameNomitated
2023Game Development World ChampionshipAccolade for Immersive AudioNomitated
2023Game Development World ChampionshipBest Action GameNomitated